Plant nutriment ring



FIG. 1 is a top, side perspective view of a plant nutriment ring according to my new design;

FIG. 2 is a top plan view thereof, the bottom plan view being a mirror image thereof;

FIG. 3 is a side elevational view thereof, taken in the direction of Arrow A of FIG. 2; and,

FIG. 4 is a top, side perspective view thereof, shown in an environment of use, the broken lines depicting environmental subject matter only and forming no part of the claimed design. 

The ornamental design for a plant nutriment ring, as shown and described. 